Can the reaction Cr_(2)O_(7)^(2-)+H_(2)O rarr 2CrO_(4)^(2-)+2H^(+) be regarded as a redox reaction?

Can the reaction Cr_(2)O_(7)^(2-)+H_(2)O rarr 2CrO_(4)^(2-)+2H^(+) be

1.	Can the reaction Cr_(2)O_(7)^(2-)+H_(2)O rarr 2CrO_(4)^(2-)+2H^(+) be regarded as a redox reaction?
Answer» Solution :Oxidation number of Cr in `Cr_(2)O_(7)^(2-)=+6` oxidation number of Cr in `CrO_(4)^(2-)=+6` SINCE during this reaction the oxidation number of Cr has neither decreased nor INCREASED therefore the above reaction cannot be regarded as a redox reaction